Question: What is a superpower that starts with the letter w.
Paraphrase: What could be a superpower that begins with the letter w.
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q1047698 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'w')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: waterbending, waterbending, weather manipulation, weather manipulation, waterbreathing, waterbreathing